Motorola split itself up ~15 years ago, and the bits that dealt with consumer cell phones became Motorola Mobility. The rest became Motorola Solutions.
Motorola Mobility was sold to Google in 2012 for ~$12bn, and then in 2014 to Lenovo for ~$3bn.
https://en.wikipedia.org/wiki/Motorola#Split_of_Motorola
It's worth noting Motorola Mobility owns the Motorola trademark and can use it for any purpose. Motorola Solutions has a perpetual but very limited license for the trademark from a subsidiary for holding the trademark owned by Motorola Mobility. Motorola Solutions can continue making Motorola branded products in the same spaces as they did before but can't enter new spaces with the brand. Most people wrongly assume it's the other way around since Motorola Solutions is the original legal entity. They kept the legal entity the same for the company focused on government contracts and kept the trademark for the faster moving retail focused company where the brand is more important.